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Finding the Fourth Proportional to 418,595.81, 627,879.47 and 181,938.51

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Solution

The fourth proportional to 418,595.81, 627,879.47 and 181,938.51 is: 272,901.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,595.81 : 627,879.47 = 181,938.51 : x
  2. Step 2: Convert to fraction form
    418,595.81/627,879.47 = 181,938.51/x
  3. Step 3: Cross multiply
    418,595.81x = 627,879.47 × 181,938.51
  4. Step 4: Simplify right side
    418,595.81x = 114,235,454,321.70
  5. Step 5: Solve for x
    x = 114,235,454,321.70/418,595.81
  6. Step 6: Final answer
    x = 272,901.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.